This is definitely a nit - but something that I've gotten twice now.
If I want to choose a date in the future with the date range picker for the start date, I have to use the arrows on the second month calander (look how there are no forward arrows on the first month ui until selecting from the second), instead of the first. and select on the second month. I think it would be more intuitive to have the forward arrows on the first month always displayed, having the first month calander always being the first selected start date and the second month calander always the second.
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